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Chapter 16 Notes
Radioactivity
Question | Answer |
---|---|
radioactivity | also called radioactive decay:the process by which an unstable nucleus gives off nuclear radiation |
mass number | the sum of the numbers of protons and neutrons in the nucleus of an atom |
three types of radioactive decay? | alpha,beta,and gamma |
alpha decay | least amount of penatration:found the most in radioactive material |
beta decay | 2nd most amount of penetration:found not as much as alpha decay |
gamma decay | the best penetration:fuond the least out of the three |